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Responsive Photonic Hydrogels Based on Nanocrystalline Cellulose


  • We thank CelluForce and NSERC for supporting this project. J.A.K. is grateful to NSERC for a Postdoctoral Fellowship.


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All in order: The self-assembly of nanocrystalline cellulose (NCC) with hydrogel precursors leads to nanocomposites with long-range chiral nematic order. The combination of chiral structure and hydrogel swelling behavior gives rise to iridescence that rapidly responds to various stimuli.

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